Home / 20,569,109,207.28-28,383,101,127.30-11,535,008,213.86

Finding the Fourth Proportional to 20,569,109,207.28, 28,383,101,127.30 and 11,535,008,213.86

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Solution

The fourth proportional to 20,569,109,207.28, 28,383,101,127.30 and 11,535,008,213.86 is: 15,917,038,571.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,569,109,207.28 : 28,383,101,127.30 = 11,535,008,213.86 : x
  2. Step 2: Convert to fraction form
    20,569,109,207.28/28,383,101,127.30 = 11,535,008,213.86/x
  3. Step 3: Cross multiply
    20,569,109,207.28x = 28,383,101,127.30 × 11,535,008,213.86
  4. Step 4: Simplify right side
    20,569,109,207.28x = 327,399,304,638,224,531,456
  5. Step 5: Solve for x
    x = 327,399,304,638,224,531,456/20,569,109,207.28
  6. Step 6: Final answer
    x = 15,917,038,571.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.